0.7.1

Don't fail when trying to install before django is installed.

0.7

First time I tagged releases.

Todo

Convert date/time objects nicely to/from ISO strings (YYYY-mm-dd HH:MM:SS
TZNAME). This is actually a bit tricky, as we don't know if we are expecting
a date/time object. We may parse objects as we go, but there could be
some performance issues with this.